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Scientists studying microalgae for use in biofuels discovered that alguronic acid might protect skin from environmental damage. Though no clinical research on the efficacy of Sephora's Algenist products has been published in peer-reviewed journals, dermatologists say the in vitro test results are interesting. "In the petri dish, their data seems to show some substantial benefits to their active ingredient," dermatologist Dr. David McDaniel said. But he and other dermatologists cautioned that lab results don't necessarily translate to the final product.

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Tengram Capital Partners is buying 80% of Algenist, a skin care and cosmetic line, from TerraVia. Algenist brings in the most revenue for TerraVia, and analysts say its sale represents a shift toward ingredients manufacturing.

Only three adverse events were reported in a trial of microfocused ultrasound for skin-tightening on the face and neck of 52 adults with Fitzpatrick skin types III to VI. The results are reported online in JAMA Facial Plastic Surgery. The researchers reported two cases of mild edema or welts and one case of moderately severe prolonged erythema with mild scabbing, all of which were resolved within 90 days.

Only three adverse events were reported in a trial of microfocused ultrasound for skin-tightening on the face and neck of 52 adults with Fitzpatrick skin types III to VI. The results are reported online in JAMA Facial Plastic Surgery. The researchers reported two cases of mild edema or welts and one case of moderately severe prolonged erythema with mild scabbing, all of which were resolved within 90 days.

Solazyme is expanding distribution of its microalgae brand Algenist by partnering with Nordstorm to target skin and personal care markets. Algae-based ingredients are gaining popularity in the cosmetics industry as consumers seek out natural ingredients.

Biofuels company Solazyme had discovered that an algae it turns into jet fuel also can be used to improve the skin. "We didn't ever intend to really to get into skin care," said Riva Barak, product development manager, "but while researching microalgae for renewable energy purposes, we stumbled upon an incredible compound." Solazyme is marketing the ingredient in its Algenist line of skin care products.